CN102329013A - Novel corrosion-inhibition scale inhibitor for treating circulating water - Google Patents
Novel corrosion-inhibition scale inhibitor for treating circulating water Download PDFInfo
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- CN102329013A CN102329013A CN201110207861A CN201110207861A CN102329013A CN 102329013 A CN102329013 A CN 102329013A CN 201110207861 A CN201110207861 A CN 201110207861A CN 201110207861 A CN201110207861 A CN 201110207861A CN 102329013 A CN102329013 A CN 102329013A
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- water
- scale inhibitors
- circulating water
- ethylene glycol
- scale inhibitor
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Abstract
The invention provides a novel corrosion-inhibition scale inhibitor for treating circulating water, which comprises the following components in percentage by weight: 0.1-10% of ethylene glycol tetraacetic acid, 1-50% of ethylene diamine, 1-15% of pentasodium diethylene triamine pentaacetate, 0.1-10% of nitrilotriacetic acid and the balance of water. By using the technical scheme, the problem of high hardness of circulating water can be solved; and the scale inhibitor has the function of peeling old scales, overcomes the equipment damage by manual and mechanical scale removal, and enhances the power generating efficiency.
Description
Technical field
The invention belongs to water-treatment technology field, particularly relate to a kind of circulating water treatment water quality stabilizer.
Background technology
Most of water quality of northern China belongs to middle high-hardness water, and the characteristics of this type water quality are that calcium hardness is high, and total alkalinity is high; The corrosion tendency property of water body is little, and fouling tendency property is bigger, when especially being used as natural gas power; Can find in the actual motion that power unit is very big with the deposition of refrigeration cycle fouling; Need regular manual work to carry out mechanical snaking and handle, big to the equipment injury, and stop transport and also bring the certain economic loss.
Organic phosphoric acid at present commonly used such as ATMP, HEDP, PBTC etc. are used as the staple of Scale inhibitors, can play corrosion inhibition on the one hand, and the effect of resistance calcium carbonate scale is arranged again, have overcome the pollution of poly-phosphate to environment to a certain extent.But the poor of the resistance calcium phosphate scale of ATMP, HEDP and PBTC commonly used is just poorer in the face of the effect of old dirt, needs the good polymkeric substance of composite resistance calcium phosphate scale.And type of polymer is different, and treatment effect is also different, and it is effective generally to hinder calcium phosphate scale, and it is less especially old dirt to be peeled off effect better polymerization thing, and cost is higher.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of cost low, can solve recirculated water high firmness problem, especially can specific aim peel off the novel corrosion-retarding Scale inhibitors of old dirt.
Particularly; The invention provides a kind of novel treatment recirculated water and use corrosion inhibiting and descaling agent; Comprising ethylene glycol diethyl ether ethylenediamine tetraacetic acid (EDTA), quadrol, diethylene triamine pentacetic acid (DTPA) five sodium and nitrogen base nitrilotriacetic, is benchmark with the Scale inhibitors gross weight, wherein: ethylene glycol diethyl ether ethylenediamine tetraacetic acid (EDTA) 0.1-10%, quadrol 1-50%, diethylene triamine pentacetic acid (DTPA) five sodium 1-15%; Nitrogen base nitrilotriacetic 0.1-10%, surplus is a water.
Further preferably, be benchmark with the Scale inhibitors gross weight, wherein: ethylene glycol diethyl ether ethylenediamine tetraacetic acid (EDTA) 0.1-5%, quadrol 2-30%, diethylene triamine pentacetic acid (DTPA) five sodium 1-5%, nitrogen base nitrilotriacetic 0.2-5%, surplus is a water.
When a kind of novel treatment recirculated water provided by the invention prepares with corrosion inhibiting and descaling agent, in the interpolation process, add being spaced apart more than 5 minutes between each raw material.
Advantage of the present invention and characteristics: use the present technique scheme can solve recirculated water high firmness problem, have the function that old dirt is peeled off simultaneously, overcome of the injury of artificial mechanism snaking, improve generating efficiency to equipment.
Embodiment
In order to understand the present invention, further explain the present invention with embodiment below, but do not limit protection scope of the present invention.
Embodiment 1
With the Scale inhibitors gross weight is benchmark, adds ethylene glycol diethyl ether ethylenediamine tetraacetic acid (EDTA) 5%, quadrol 30%, diethylene triamine pentacetic acid (DTPA) five sodium 5%, nitrogen base nitrilotriacetic 5%, and surplus is a water, thorough mixing adds being spaced apart more than 5 minutes between each raw material in the interpolation process.
Embodiment 2
With the Scale inhibitors gross weight is benchmark; Add ethylene glycol diethyl ether ethylenediamine tetraacetic acid (EDTA) 0.5%, quadrol 10%, diethylene triamine pentacetic acid (DTPA) five sodium 3%, nitrogen base nitrilotriacetic 0.8%, surplus is a water; Thorough mixing adds being spaced apart more than 5 minutes between each raw material in the interpolation process.
Embodiment 3
With the Scale inhibitors gross weight is benchmark, adds ethylene glycol diethyl ether ethylenediamine tetraacetic acid (EDTA) 3%, quadrol 20%, diethylene triamine pentacetic acid (DTPA) five sodium 4%, nitrogen base nitrilotriacetic 3%, and surplus is a water, thorough mixing adds being spaced apart more than 5 minutes between each raw material in the interpolation process.
Embodiment 4
With the Scale inhibitors gross weight is benchmark, adds ethylene glycol diethyl ether ethylenediamine tetraacetic acid (EDTA) 8%, quadrol 40%, diethylene triamine pentacetic acid (DTPA) five sodium 8%, nitrogen base nitrilotriacetic 8%, and surplus is a water, thorough mixing adds being spaced apart more than 5 minutes between each raw material in the interpolation process.
Method of the present invention is described through concrete embodiment.Those skilled in the art can use for reference links such as content appropriate change raw material of the present invention, processing condition and realize corresponding other purpose; Its relevant change does not all break away from content of the present invention; All similar replacements and change will become apparent to those skilled in the art that all to be regarded as and are included within the scope of the present invention.
Claims (3)
1. a novel treatment recirculated water is used corrosion inhibiting and descaling agent, it is characterized in that: Scale inhibitors comprises ethylene glycol diethyl ether ethylenediamine tetraacetic acid (EDTA), quadrol, diethylene triamine pentacetic acid (DTPA) five sodium and nitrogen base nitrilotriacetic.
2. according to the said Scale inhibitors of claim 1; It is characterized in that with the Scale inhibitors gross weight be benchmark; Wherein: ethylene glycol diethyl ether ethylenediamine tetraacetic acid (EDTA) 0.1-10%, quadrol 1-50%, diethylene triamine pentacetic acid (DTPA) five sodium 1-15%, nitrogen base nitrilotriacetic 0.1-10%, surplus is a water.
3. according to the said Scale inhibitors of claim 2; It is characterized in that with the Scale inhibitors gross weight be benchmark; Wherein: ethylene glycol diethyl ether ethylenediamine tetraacetic acid (EDTA) 0.1-5%, quadrol 2-30%, diethylene triamine pentacetic acid (DTPA) five sodium 1-5%, nitrogen base nitrilotriacetic 0.2-5%, surplus is a water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110207861A CN102329013A (en) | 2011-07-24 | 2011-07-24 | Novel corrosion-inhibition scale inhibitor for treating circulating water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110207861A CN102329013A (en) | 2011-07-24 | 2011-07-24 | Novel corrosion-inhibition scale inhibitor for treating circulating water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102329013A true CN102329013A (en) | 2012-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110207861A Pending CN102329013A (en) | 2011-07-24 | 2011-07-24 | Novel corrosion-inhibition scale inhibitor for treating circulating water |
Country Status (1)
| Country | Link |
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| CN (1) | CN102329013A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104628162A (en) * | 2013-11-11 | 2015-05-20 | 中国石油化工股份有限公司 | Biological slime stripping agent and method for stripping biological slime in circulating cooling water system |
-
2011
- 2011-07-24 CN CN201110207861A patent/CN102329013A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104628162A (en) * | 2013-11-11 | 2015-05-20 | 中国石油化工股份有限公司 | Biological slime stripping agent and method for stripping biological slime in circulating cooling water system |
| CN104628162B (en) * | 2013-11-11 | 2017-01-11 | 中国石油化工股份有限公司 | Biological slime stripping agent and method for stripping biological slime in circulating cooling water system |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120125 |